/Engine/Plugins/Developer/PluginUtils/Source/PluginUtils/Public/PluginUtils.h
Returns whether the specified plugin name is valid, regardless of whether it's already used
static bool IsValidPluginName ( const [FString](API\Runtime\Core\Containers\FString) & PluginName, [FText](API\Runtime\Core\Internationalization\FText) * FailReason, const [FText](API\Runtime\Core\Internationalization\FText) * PluginTermReplacement )